A New Low-Power CMOS Quadrature VCO with Current Reused Structure

被引：0

作者：

Wang, Chunhua ^{[1
]}

Peng, Guanchao ^{[1
]}

Ma, Minglin ^{[1
]}

Li, Zhan ^{[1
]}

机构：

[1] Hunan Univ, Sch Comp & Commun, Changsha 410082, Hunan, Peoples R China

来源：

RADIOENGINEERING | 2011年 / 20卷 / 01期

关键词：

Coupling; P&N-MOS pair; VCO; Low-power; Low-voltage; Phase noise; Oscillator; Quadrature; LOW-PHASE-NOISE; LC-VCO;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new quadrature voltage controlled oscillator (QVCO) circuit topology is proposed for low-voltage and low-power applications. In the proposed circuit, two oscillators with current-reused structure are coupled to each other by two P&N-MOS pairs. In this way, low phase noise quadrature signals are generated with low-voltage and low-power. The simulation is made by Cadence in chartered 0.18 mu m CMOS process. The simulation result shows that the QVCO phase noise is approximately - 117.1 dBc/Hz at 1MHz offset from 1.8 GHz operation frequency. The QVCO dissipates 1.92 mW with a 1.1 V supply voltage.

引用

页码：360 / 364

页数：5

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